1 ENTRANCE. The ceiling is open to the sky. The area is marked by five large natural stone columns, each reaching up to 20 to 30 feet high. The floor is made entirely of loose gray billiard-ball sized rocks. This is difficult to walk through as it shifts and adventurers legs sink easily in the stuff, lowering ground movement by 3” (minimum 1”) and running is not possible. Creatures such as mules and horses can make no headway as their long legs and heavy bodies cause them to sink quickly.
A monster hiding in the rubble guards the temple entrance.
Giant Gray Slagworm (AC 3; MV 6” (12”); HD 8; hp 50; #AT 1 bite; D 3-18 (+ 1-4); SA Surprise on a 1-4, squirt acid for 8-32; XP 1050)
It fights as an ankheg, except for changes noted above. It lurks under the rocks and when it emerges, it will try to appear in a group of people. Everyone within ten feet of its position must save vs paralyzation or fall prone.